AZ70xx 반도체 회로 부품 판매점
VOLTAGE DETECTOR
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 BCD Semiconductor |
VOLTAGE DETECTOR
General Description
Features
Data Sheet
AZ70XX
The AZ70XX series ICs are under voltage detectors
with a built in voltage threshold and low power con-
sumption. The AZ70XX are specifically designed to
accurately monitor power supplies.
The AZ70XX use a precision on-chip voltage refer-
ence and a comparator to measure the input operating
voltage. These ICs can accurately reset the system after
detecting voltage at the time of switching power on and
instantaneous power off in various CPU systems and
other logic systems. The detect voltage thresholds are
2.3V/2.5V/2.7V/2.9V/3.1V/3.3V/4.2V/4.5Vfor
AZ7023/25/27/29/31/33/42/45 respectively. Built in
hysteresis helps to prevent erratic operation in the pres-
ence of noise.
The AZ70XX series are available in 2 standard pack-
ages: TO-92 (bulk or ammo packing) and SOT-89.
· Low Current Consumption:
ICCL=300µA Typical
ICCH=30µA Typical
· Low Minimum Operating Voltage for Output
Resetting: 0.8V Typical
· Built in Hysteresis Voltage: 50mV Typical
· Open Collector Output
· Extended Temperature Range: -40 to 85oC
Applications
· Low Battery Voltage Detector
· Power Fail Indicator
· Processor Reset Generator
· Battery Backup Control
· Home Electric Appliances
TO-92(Bulk Packing)
TO-92(Ammo Packing)
SOT-89
Oct. 2011 Rev. 2. 2
Figure 1. Package Types of AZ70XX
BCD Semiconductor Manufacturing Limited
1
VOLTAGE DETECTOR
Pin Configuration
Z Package
(TO-92(Bulk Packing))
Z Package
(TO-92(Ammo Packing))
3 OUT
2 GND
1 VCC
3 OUT
2 GND
1 VCC
Data Sheet
AZ70XX
R Package
(SOT-89)
123
VCC GND OUT
Figure 2. Pin Configuration of AZ70XX (Top View)
Functional Block Diagram
VCC
OUT
+
-
GND
Figure 3. Functional Block Diagram of AZ70XX
Oct. 2011 Rev. 2. 2
BCD Semiconductor Manufacturing Limited
2
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AZ70xx detector
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